As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK MAINTENANCE FOUND CORROSION ON FWD FUSELAGE FLOOR STRUCTURE IB SEAT TRACK AT CROSSBEAM FR17 AND 19 UPPER CAP. FWD FUSELAGE FLOOR STRUCTURE LH IB SEAT TRACK AT CROSSBEAM LOCATION FR17 AND 19 ON THE UPPER CAP REPAIRED IAW EMB SRM 53-10-10 FIG 203.